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Troubleshooting a 32kHz Crystal Oscillator – How to Actually Make it...
Now for an oscillator to work, we need an amplifier with a gain of greater than 1, and a phase shift of 360 degrees to get positive feedback. First problem – the transistor was saturated, with Vc stuck...
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TCXO Breakout with Breadboard-Compatible Headers
Temperature Compensated Crystal Oscillators, or TCXOs, provide compensation at a higher temperature levels than can normally be achieved with standard crystal oscillators. These Raltron RTX0230LCs are...
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How to Grow a Large Rochelle Salt Crystal from a Small Starter Crystal
This is a smart fun-damental science project from Rimstar, and I like the plexiglass window on the styrofoam container for looking inside without needing to remove the lid:The basic idea is to create a...
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Add a Phono Horn to Your Crystal Radio (or Any Piezo Speaker Project!) for...
These crystal and piezo mini radios look fantastic, especially with the addition of the metallic-finish paper phono horns courtesy of Rob Ives’s website – download the horn and dock design here and add...
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Electron Microscope Image of 25-micron Salt Crystal Cubes
Rad photo from the Harnett Lab at the University of Louisville – it’s amazing what you can really, really, really close-up!In an effort to create tiny holes in our molded rubber parts, we made these...
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“Luch” quartz wristwatch IC die-shot @Zeptobars
Prolific microchip photographer and investigator Zeptobars has posted a newly decapped die shot.Inside old (199x) Belorussian wristwatch I’ve found this IC.Taking a look at quartz – tuning fork cut at...
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New Guide: Paper Craft Crystal Gems Tutorial #cosplay #stevenuniverse
New tutorial from Erin St. Blaine: create amazing cosplay glowing crystal gems! From the guide:Crystal Gems will always save the day! Create a stunning paper craft crystal from laminated cellophane...
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New Guide: Glowing Crystal Cosplay Staff Tutorial
Check out the latest tutorial on the Adafruit Learning System from Erin St. Blaine: Make a light up Crystal-topped Wizard staff to go with your favorite cosplay outfit.This staff is built around a...
View ArticleHow to make an LED Geode Lamp with a HUGE Quartz Crystal
via Share A HackThis is a quick 1-day #diy video about how to turn your #crystal #geode into a lamp. This particular geode was a gift from my cousin. He found this unique quartz crystal at a department...
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New Guide: Four Seasons NeoPixel Fairy Bottles
Check out the latest tutorial from Erin St. Blaine: create a series of gorgeous glass bottles with NeoPixel lights inside, and control them all at once using a Circuit Playground Express. This is a...
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New Guide: PaperCrafted Crystal Gems on a NeoPixel Strand – Beginner Tutorial
Check out the latest Learn Guide from Erin St Blaine: fold beautiful paper-craft crystal gemstones and make diffusers for Adafruit’s NeoPixel Dot strand. The sample code has four different variable...
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A quartz crystal oscillator teardown with its tiny IC #teardown...
Ken Shirriff provides another interesting teardown and die shot. This is a n encapsulated 4.7174 MHz crystal oscillator found on an old card for an IBM PC.There is a tiny die inside – magnified, it...
View ArticleThe Great Search: 32 KHz RTC crystals #TheGreatSearch #DigiKey @DigiKey...
We did an earlier Great Search on oscillators, but this week (video) we’re specifically looking at 32kHz ‘real time clock/counter’ crystals. These are often used in microcontrollers as input to a...
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NEW PRODUCT – dLUX-dLITE Blue Crystal Shape LEDs 5 Pack by Unexpected Labs
NEW PRODUCT – dLUX-dLITE Blue Crystal Shape LEDs 5 Pack by Unexpected LabsSure, we’ve got all sorts of diffused bare LEDs in all sorts of colors and sizes. But have you ever laid your peepers on this...
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